In 'Hello, Who's Calling?', you play as a struggling private detective who specializes in answering random phone calls. Each call leads you to quirky and bizarre investigations that need solving, whether it's a missing sock, an unsolved murder, or a mystery concerning an intergalactic pizza delivery. The players navigate through dialogue trees and make choices that influence the outcome of each case while uncovering strange connections between callers and hilarious situations. Every interaction unfolds new twists, hidden secrets, and uproarious humor, making players both laugh and think in this captivating text-based adventure.